Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
936 detections
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Detects a specific exploit pattern where a malicious process triggers Microsoft Defender (MsMpEng.exe) to write a quarantine artifact to a user-controlled directory (such as a TEMP subdirectory), which is then immediately overwritten by an unprivileged process. This behavior indicates an attempt to exploit the Defender quarantine pipeline for unauthorized file manipulation or potential privilege escalation.
This rule monitors for the loading of a specific driver file, 'pcdhost.sys', followed by a process termination event within a five-minute window. This behavior is indicative of a 'Bring Your Own Vulnerable Driver' (BYOVD) attack pattern, where an adversary loads a vulnerable driver to gain kernel-level access or elevate privileges, often followed by the cleanup or termination of the process that facilitated the loading.
Detects potential local privilege escalation attempts leveraging the AnyDesk printer named pipe (adprinterpipe). The rule monitors for the creation of the adprinterpipe, the spawning of processes with SYSTEM privileges from an AnyDesk parent, and the loading of suspicious DLLs by AnyDesk, which are indicative of an exploit leveraging insecure COM unmarshaling callbacks.
This rule monitors system and audit logs on network appliances (like Cisco vManage) for unauthorized attempts to escalate privileges to a rogue root user ('troot') and suspicious file manipulation or command execution related to tenant list management, often associated with exploitation of specific vulnerabilities.
Detects the loading of the 'pcdhost.sys' driver, which is associated with malicious activity, and correlates this event with potential defensive evasion techniques such as mass termination of security-related processes or the usage of 'sc.exe' for service creation. The rule also looks for specific debug string artifacts within process memory or payloads that indicate potential malicious behavior.
Detects the loading of the vulnerable OPSWAT AppRemover driver (pcdhost.sys) from a non-standard file path, often used as a Bring Your Own Vulnerable Driver (BYOVD) technique by the ResiLoader malware to elevate privileges and gain kernel-level access to terminate security software. The rule also monitors for mass process termination events indicative of successful security product disabling.
Detects the creation of or connection to the specific named pipe '\\pipe\\RoguePlanet', which is used as a synchronization and callback channel by the Nightmare Eclipse RoguePlanet exploit (CVE-2026-50656). This exploit leverages the named pipe to facilitate communication between a low-privileged exploit process and a SYSTEM-level Windows Error Reporting (WER) task payload during a local privilege escalation attempt.
Detects attempts to exploit an authorization bypass vulnerability in MyBB (specifically observed in version 1.8.40) where a non-administrative ACP account can assign users to the administrator group (gid=4) by manipulating POST requests to the user-add or user-edit endpoints.
Detects exploitation attempts of the MyBB limited Admin CP-to-Admin privilege escalation vulnerability. The detection looks for unauthorized HTTP POST requests to the user management module that assign the Administrator group (gid=4) to a new user, or access to sensitive super-admin-only modules by accounts that should not have such permissions. It also flags requests containing known PoC artifact identifiers.
Detects the loading of the known vulnerable OPSWAT AppRemover driver (pcdhost.sys). This driver is often abused in Bring-Your-Own-Vulnerable-Driver (BYOVD) attacks, such as those performed by ResiLoader, to execute code in kernel mode and bypass security controls, ultimately allowing the termination of protected security processes.
Detects the loading of a potentially vulnerable or unauthorized third-party kernel driver from outside the standard system driver directory, followed shortly (within 30 minutes) by the termination of security product processes or services. This behavioral pattern is indicative of 'Bring Your Own Vulnerable Driver' (BYOVD) exploitation, often used to impair security tools and blind EDR/antivirus solutions.
This rule detects activities indicative of the RoguePlanet exploit, which utilizes NTFS junction swapping to stage malicious operations. It monitors for the creation of suspicious system-like directories within temporary paths, writing of executables (like wermgr.exe) to those paths, unprivileged manipulation of the Windows Defender Quarantine directory, and virtual disk image mounting from user-writable directories.
Detects the creation of specific staging directories prefixed with 'RP_' in user temporary directories, containing 'System32' or 'wdtest_temp' subdirectories. This pattern is characteristic of an NTFS junction swap exploitation technique used to target Windows Defender quarantine artifact placement as part of the CVE-2026-50656 vulnerability.
Detects potential privilege escalation attempts targeting AnyDesk runtime via named pipe exploitation. The rule monitors for unauthorized cross-process access to AnyDesk processes, AnyDesk spawning suspicious child processes indicative of post-exploitation activity, and the execution of a known vulnerable AnyDesk binary version.
Detects potential exploitation of RustDesk remote access software, focusing on unauthorized process execution from RustDesk-related binaries (including session relay and rendezvous components) and the presence of documented proof-of-concept (PoC) artifacts associated with session permission bypass vulnerabilities.
This rule detects the creation of a new .sys driver file outside of standard Windows system directories (System32/drivers, DriverStore, SysWOW64/drivers) followed by the registration or modification of a service in the Windows Registry (CurrentControlSet/Services) within 15 minutes. This pattern is indicative of potential unauthorized driver installation or a Bring Your Own Vulnerable Driver (BYOVD) attack.
Detects indicators of the DirtyClone (CVE-2026-43503) Linux kernel local privilege escalation exploit. The rule identifies the execution or compilation of the PoC binary, the specific su invocation used for shell spawning by the exploit, and subsequent post-exploitation actions including modifying sensitive files (/etc/passwd, /etc/sudoers) and creating new local accounts with sudo privileges.
Detects opportunistic lock (oplock) placement on wermgr.exe alternative data streams or volume shadow copy paths. This behavior is associated with the RoguePlanet exploit chain, which attempts to pause the Microsoft Defender service (MsMpEng.exe) by creating a Time-of-Check to Time-of-Use (TOCTOU) race condition during the quarantine process.
Detects potential exploitation of the Zerologon vulnerability (CVE-2020-1472) by correlating computer account password changes (Event ID 4742) with preceding anonymous or null SID logons (Event ID 4624) where the host identifier aligns. The rule identifies anomalous account modifications that occur within a short time window following an anonymous authentication request on the same host.
This rule detects command-line activity and process execution associated with the exploitation of various Linux kernel vulnerabilities, including CVE-2026-43503, CVE-2026-46300, CVE-2026-43284, CVE-2026-31431, and CVE-2026-43500. It monitors for the compilation and execution of exploit code, manipulation of kernel modules via modprobe for specific network protocols (esp4, esp6, rxrpc), configuration changes to network namespaces (xfrm, unshare), and the presence of known exploit filenames like DirtyClone or DirtyFrag.
Detects the loading of known vulnerable drivers (e.g., ProcessMonitorDriver.sys, inpoutx64.sys) associated with 'The Gentlemen' RaaS group, used in BYOVD attacks to elevate privileges and terminate security products.
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